Cream-collecting pump.



G. M. FREEMAN.

CREAM COLLECTING PUMP.

APPLIUATION FILED 110118.11909 972,075. Patented 0@t.4,1910.

2 SHEETS-SHEET 1.

[Nl/ENTOR G. M. FREEMAN.

CREAM COLLBOTING PUMP.

APPLICATION FILED Nov.1a,1ao9.

972,075. Patented 00n.4,191o;

2 SHEETS-SHEET 2.

WITNESSES; INVENTOR GEORGE IVI. FREEMAN. 0F SEATTLE, VASIIINGTON.

CREAM-COLLECTING PUMP.

Specification of Letters Patent.

Patented (hat. fl, 15H0.

Application filed November 18, 1909. Serial No. 528,793.

To LU whom it may concern:

lle it. known that l, (inenten M. [fiocchi/xiv, a citizen of the UnitedStates7 residing at Seattle7 in the county otl `Kingr and Slate oflVasllingtou, have invented certain new and useful lnipro\v'elneuts inCream-Collecting lunips; and I do hereby declare the following to be afull, clear, and exact description ot' the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

rl`his invention relates to apparatus for removing one liquid from thetop of another liquid and more especially for skimming cream from milkunder certa-in conditions.

A further object. of the invention is to provide a receptacle withpneumatic means for \\-'itl1drawing one liquid from another into suchreceptacle without drawing the liquid into the pneumatic apparatusproper.

The specific object of the invention is to provide an apparatus forremoving cream from milk in bottles in which it is ordinarily deliveredto city customers and providinga` receptacle to contain such removedcream it is withdrawn from the bottle.

A further object of the invention is to provide a receptacle having atube extending below the receptacle and communicating therewith and witha bulb or other pneumatic device for producing a rarefact-ion of airwithin the receptacle.

W' ith these and other objects in view the present invention comprisescertain novel constructions, combinations and arrangements of parts aswill be hereinafter fully described and claimed.

In the drawings Figure 1 is a. perspective view of the improvedapparatus embodying removable heads upon each end of the receptacle:Fig. 2 is a transverse sectional view of the device showing embodimentsimilar to that shown in Fig. 1. Fig. 3 is a diametrieal, sectional viewof the cover member or head from one end of the receptacle showing alsoa fragment of the end of the receptacle adjacent thereto. Fig. 4- is adiametrical, sectional view of a head or cap for the receptacle showinga valve and a valveless bulb. Fig. 5 is a diametrical, sectional view ofan embodiment of the invention havin an inlet pipe communicating at thetop o the receptacle instead of through the bottom.

Like characters of reference designate like parts throughout the severalviews.

As shown in Figs. l, 2 and il, the receptacle l()7 preferably oit glassfor convenience, is in tbe forni of a cylinder open at both ends with acover nielnber l1. for the top which is secured on the top by-iueans oflnrvonetjoints comprising the grooves 12 struck up in the metal of thecap to produce ridgesor ribs upon the outer su rface and withcorresponding lugs l?) outstanding from the material of the cylinder 10and with which the grooves 12 engage. The cover member 11 is alsoprovided with a nipple 14: upon which is secured a bulb 15 in anyapproved manner. shown in Figs. 1 and 2, as by means of a union 1G, suchunion being' provided with a .valve 17 at its upper end adapted topermit an' to pass through the nipple into the bulb 15 and also with avalve 18 carried by the upper end of the bulb 15 adapted to permit theoutflow of air from such bulb.

At the bottom of the cylinder 10 a cap or head 19 is provided havingbayonet joints 12 as previously described and similar to the cap 11except that a. tube 2O is inserted through such cap and extends upwardlywithin the cylinder and is made air and liquid tight with the cap 19 inany approved manner, as by the collars or nuts 21. At its lower end thetube 20 carries a bell or funnel shaped member 22 so that the liquidlifted through the pipe 20 by atmospheric pressure is not disturbed atits intake as if taken in through the pipe 2O without enlargement.

Instead of employing the valves 17 and 18 as shown in Figs. 1 and 2 thevalve 23 may be located in the cover member 11 and the bulb 15 without avalve connected with the cylinder by means of the nipple 14,. It is alsofound desirable under some conditions to have the receptacle formed withan integral bottom as shown at 10 in Fig. 5. In this embodiment thecover member 11 is connected with a tube 20 having a return bend 24communicating with the receptacle through the cap 11H the bulb 15,valves 17 and 18 and other associated parts being the same as shown inFigs. 1 and 2. In the embodiment shown in Fig. 5 the cream or otherliquid is drawn upwardly through the pipe 20 and discharged into the topof the receptacle 10. l/Vhatever the embodiment, it is found desirableto supply a gasket 25 within the annular groove at the outer edge of thecover members which gasket is of elastie material and is b the ends ofthe e CIK Will partially 10 and the will force the li the pipe 2() or 20the embodiment as 5 the bulb may be relaxed during the ing the liquidfor t eeptaele 10 and the release of the bulb continuously exhausts theair from such reeeptaele.

I claim:

In a device of the class described, a body, a bottom removable from thebody, an inlet tube carried by and removable With the bottom, a coverand air exhausting means earried by and removable with the Cover.

In testimony whereof I alix my signature in presence of two Witnesses.

GEORGE M. FREEMAN. Witnesses:

G. VARD KEMP, C. C. PHILLIPS.

